Revert "Remove dotfiles."

This reverts commit 49fe00521e.

.npmingnore

@@ -0,0 +1,8 @@
+node_modules
+npm-debug.log
+.DS_Store
+.nyc_output
+bab.cache
+test
+src
+coverage

.nycrc

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+{
+  "extends": "@istanbuljs/nyc-config-babel"
+}

.prettierignore

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+dist/

.prettierrc.json

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+{
+  "arrowParens": "avoid",
+  "bracketSpacing": false,
+  "jsxBracketSameLine": false,
+  "printWidth": 80,
+  "proseWrap": "preserve",
+  "requirePragma": false,
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "all",
+  "useTabs": false,
+  "overrides": [
+    {
+      "files": "*.json",
+      "options": {
+        "printWidth": 200
+      }
+    }
+  ]
+}

.sequelizerc

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+var path = require('path')
+
+module.exports = {
+  config: path.resolve('server', 'db', 'config', 'config.json'),
+  'models-path': path.resolve('server', 'db', 'models'),
+  'seeders-path': path.resolve('server', 'db', 'seeders'),
+  'migrations-path': path.resolve('server', 'db', 'migrations')
+}